Accordingly, it is possible to operate a large quantity of tape feeders 10 such that the total consumption current Itot is within a range that does not exceed the output current capacity Icap, making it possible to efficiently perform changeover work of tape feeders 10 while taking sufficient advantage of the output current capacity Icap within a range that does not result in an excess current. On the other hand, the output current capacity Icap can be made appropriate, also helping to lower costs of the power supply device. Further, because it is not necessary to actually measure the consumption current, the configuration of power supply control device 2 can be simple, also helping to lower costs.

Further, the consumption current corresponding to the state of the tape feeder 10 includes a standby consumption current corresponding to a standby state in which the specified operation is not being performed, a preparation consumption current corresponding to a preparation state of preparing for the specified operation, and an operating consumption current corresponding to an operating state in which the specified operation is being performed, and consumption current acquiring section 21 determines or supposes which of the standby state, the preparation state, and the operating state the multiple tape feeders 10 are in, and acquires the corresponding one of the standby consumption current, preparation consumption current, and the operating consumption current. Accordingly, by distinguishing between the three types of consumption currents, it is possible to reliably calculate the total consumption current Itot to be in a range that does not exceed the output current capacity Icap, thus improving the ability to get the most out of the output current capacity Icap.